D. Rathke’s Cyst

Rathke’s cleft cyst is a benign cystic lesion that can affect the
pituitary gland. Symptomatic Rathke’s cleft cyst (RCC), however,
is relatively uncommon. When these cysts are large enough to be clinically
apparent, they may cause headache, visual disturbances, nausea, decreased
energy, vomiting, seizure, pituitary dysfunction, and diabetes insipidus,
all due to mass effect.